496+ Tools Comprehensive Tools for Webmasters, Developers & Site Optimization

Webmaster Tools

Essential tools for website management, monitoring, and optimization. Analyze your site's health, detect issues, and ensure optimal performance.

Uptime Calculator

Calculate uptime percentage from downtime duration. Enter hours or minutes of monthly downtime to see your site's availability as 99.9%, 99.99%, or other SLA metrics.

Calculate Uptime
Bandwidth Calculator

Estimate bandwidth requirements based on page size, monthly visitors, and average page views per visitor. Plan your hosting needs accurately.

Calculate Bandwidth
Response Time Logger

Test a URL multiple times to measure response time consistency. Shows minimum, maximum, and average response times to identify performance patterns.

Test Response Times
Website Screenshot Tool

Capture screenshots of any webpage directly in your browser. Uses html2canvas to generate downloadable images of the visible page area.

Capture Screenshot
Broken Image Finder

Scan any webpage for broken images returning 404 or other errors. Identifies missing or inaccessible images that need fixing for better user experience.

Find Broken Images
Mixed Content Checker

Detect insecure HTTP resources loaded on HTTPS pages. Find scripts, stylesheets, images, and other assets causing mixed content warnings in browsers.

Check Mixed Content
Social Share Preview

Preview how your webpage appears when shared on Facebook, Twitter, and LinkedIn. Extracts Open Graph and Twitter Card metadata for social optimization.

Preview Social Cards
Technology Detector

Identify technologies powering any website including CMS, frameworks, analytics, CDN, and web servers. Detect WordPress, React, Google Analytics, Cloudflare, and more.

Detect Technologies